Arc'teryx Atom SL Womens Jacket 2026

Lightest, most packable Atom Jacket for big efforts in cold, wet conditions.

Lighter than the original and with the same features as the hoody by the same name (minus the hood, of course), the Atom SL Jacket is one of the most useful (and packable) pieces you can own. Wear it as a standalone layer when trail runs take you through cold, wet weather or layer it with a waterproof shell when mountain pursuits demand additional warmth and mobility. Breathable and weather-resistant, it has stretch insulation in the body but not the sleeves — maximizing packability while still delivering focused warmth to your core.

Features & Specs

Technical features

• Moisture-resistant outer face fabric
• Breathable
• Lightweight
• Compressible and packable
• Durable
• Insulated
• Ultralight

Construction

• Fortius™ Air 20 face fabric effectively balances air permeability and weather resistance with lightweight durability and stretch
• Performance stretch fleece side panels give ventilation
• Stretch synthetic insulation is breathable, warm, and light, adds freedom of movement, and is made with recycled content
• Lightweight stretch Octa® Fleece side panels provide freedom of movement and improve ventilation

Cuff & Sleeves configuration

• Uninsulated, mesh lined sleeves give light protection and regulate temperature

Design & Fit

• Fitted, with articulated patterning for mobility and comfort
• Garment Centre Back Length: Size S is 26"/65cm - Varies by size

Fabric treatment

• FC0 DWR (Durable Water Repellent) finish repels moisture and is PFAS-free

Hem configuration

• Adjustable hem draw cord seals out drafts

Pocket configuration

• Two hand pockets with hidden zippers

Sustainability

• Contains materials that meet the bluesign® criteria
• Shell - bluesign® approved material
• Contrast - recycled content
• Insulation - recycled content
• Lining - bluesign® approved material
• This article was treated with an anti-odour biocidal product (Polygiene)
• PFAS (Per- and polyfluoroalkyl substances) Compliant

Materials

• Contrast: Octa® Polyester Fleece, 40D Delta Face, 122gsm - 100% Polyester
• Synthetic Insulation: Coreloft™ Stretch, 40gsm - 100% Polyester
• Lining: Recycled 20d nylon plain weave weft stretch FC0 DWR, 58gsm - 88% Nylon, 12% Elastane
• Body: Fortius™ Air 20 - Plain Weave, FC0 DWR, 58gsm - 88% Nylon, 12% Elastane
• Origin of fabric: TAIWAN, CHINA
• Origin of dyeing: TAIWAN, CHINA
• May release plastic microfibres into the environment when washing